Finding the Fourth Proportional to 1,927,581.48, 2,660,078.07 and 1,068,156.09
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Solution
The fourth proportional to 1,927,581.48, 2,660,078.07 and 1,068,156.09 is: 1,474,064.06
Step by Step Solution
- Step 1: Write the proportion equation
1,927,581.48 : 2,660,078.07 = 1,068,156.09 : x - Step 2: Convert to fraction form
1,927,581.48/2,660,078.07 = 1,068,156.09/x - Step 3: Cross multiply
1,927,581.48x = 2,660,078.07 × 1,068,156.09 - Step 4: Simplify right side
1,927,581.48x = 2,841,378,590,345.95 - Step 5: Solve for x
x = 2,841,378,590,345.95/1,927,581.48 - Step 6: Final answer
x = 1,474,064.06
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.